Use of polyacrylamide in soil

Is anyone familiar with any potential hazards of using polyacrylamide or
"polyacrylamide monomers" in soil to aid water retention? A product called
Water Grabber (there are probably others) is sold for this purpose. It seems
that the potential for acrylamide to break down (depolymerize) in soils could
pose a serious health threat, since acrylamide monomer is a potent neurotoxin.
Any information you can provide will be helpful!
Ben Prickril
mx%"prickril at bscf.uga.edu"